Turn signal electrical question

[Paul1965]

I have given up getting these lights to work as intended. Apparently the issue is with the turn signals themselves; if I make the connection to the harness coming out of the turn signal the running lights quit. I may revisit this when I replace the factory turn signals, otherwise for now the LED's are connected as running lights and that's how they're going to stay.

[RichBaker]

Dad & Pat,

You're both able to claim to be "right" on this :-)

LEDs have a very high reverse resistance (almost infinite) and a very low forward resistance.
So you two can fight over that. :-)

The reason that you need to add resistors if you're replacing normal bulbs is that the forward resistance is too low to draw enough current through a 'conventional' flasher unit to cause it to heat enough to drop the connection.

Arnie

BINGO!!!   IIRC, the FJ uses a bimetallic flasher, that is dependant on current flow to make it work. LEDs draw MUCH less current than an incandescent bulb, there fore the flasher's bimetallic element doesn't heat up and break the connection, which is what makes it "FLASH".....
The correct fix is to install an electronic flasher, which eliminates the bimetallic element.